Oxidative dehydrogenation (ODH) of ethane with O2 as oxidant on selected transition metal-loaded zeolites

Xufeng Lin, Cathleen A. Hoel, Wolfgang M H Sachtler, Kenneth R. Poeppelmeier, Eric Weitz

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Ni-, Cu-, and Fe-loaded acidic and basic Y zeolites were synthesized, and their catalytic properties for oxidative dehydrogenation of ethane (ODHE) to ethylene were characterized. Acidic Ni-loaded Y zeolite exhibits an ethylene productivity of up to 1.08 gC2 H4 gcat- 1 h- 1 with a selectivity of ∼75%. Acidic Cu- and Fe-loaded Y zeolites have an ethylene productivity of up to 0.37 gC2 H4 gcat- 1 h- 1 and a selectivity of ∼50%. For the same metal, the acidity of the zeolite favors both ODHE productivity and ethylene selectivity. Extended X-ray absorption fine structure (EXAFS) studies show that Ni, present in particles on Ni/HY during the ODHE catalytic process, contains both Ni-Ni and Ni-O bonds, and that the ratio of oxidized Ni versus metallic Ni increases with the temperature. The insights these studies provide into the ODHE reaction mechanism are discussed.

Original languageEnglish
Pages (from-to)54-62
Number of pages9
JournalJournal of Catalysis
Volume265
Issue number1
DOIs
Publication statusPublished - Jul 1 2009

    Fingerprint

Keywords

  • Ethane
  • Ethylene productivity and selectivity
  • Oxidative dehydrogenation
  • Transition metal Y Zeolite

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this